/* ===========================================
   NAVBAR MEGA-MENU STYLES
   Contained mega-menu pattern replacing nested flyouts
   Uses var(--im-*) design tokens
   =========================================== */

/* -----------------------------------------
   Default Navbar (Non-Scrolled State)
   ----------------------------------------- */
.navbar .container {
  position: relative;              /* Positioning context for mega panels */
  border-bottom-left-radius: 0.5rem;
  border-bottom-right-radius: 0.5rem;
  transition: border-radius 0.3s ease,
              background 0.3s ease,
              box-shadow 0.3s ease;
}

/* -----------------------------------------
   Scrolled Navbar Enhancement
   ----------------------------------------- */
.navbar.is-scrolled .container {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px) saturate(200%);
  -webkit-backdrop-filter: blur(16px) saturate(200%);
  border-radius: 24px;
  border: 1px solid var(--im-accent-200);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    0 2px 16px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.navbar.is-scrolled {
  background: transparent !important;   /* Override Bootstrap's navbar-stuck bg */
  padding: 0.375rem 0 !important;      /* Small gap so pill floats slightly */
}

.navbar.is-scrolled .im-mega-panel {
  background: rgba(255, 255, 255, 0.97);
}

/* -----------------------------------------
   Mega-Menu Trigger Buttons
   ----------------------------------------- */
.im-mega-trigger {
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
  transition: color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.im-mega-trigger[aria-expanded="true"] {
  color: var(--im-accent-200);
}

.im-mega-trigger .im-chevron {
  display: inline-block;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.75em;
  margin-left: 0.25rem;
}

.im-mega-trigger[aria-expanded="true"] .im-chevron {
  transform: rotate(180deg);
}

/* -----------------------------------------
   Mega-Menu Panel Base (Glassmorphic)
   ----------------------------------------- */
.im-mega-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  transform: translateY(0);
  z-index: 1050;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px) saturate(200%);
  -webkit-backdrop-filter: blur(16px) saturate(200%);
  border: 1px solid var(--im-accent-200);
  border-radius: 24px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    0 2px 16px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255, 255, 255, 0.5) inset;
  padding: 2.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.25s;
}

.im-mega-panel.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Hover bridge — invisible connector between trigger and panel */
.im-mega-nav-item {
  position: static;
}

.im-mega-nav-item::after {
  display: none;
}

.im-mega-nav-item.is-open::after {
  display: none;
}

/* -----------------------------------------
   Panel Sizing
   ----------------------------------------- */
/* Full-width panels with max-width cap */
.im-mega-panel--individuals,
.im-mega-panel--businesses,
.im-mega-panel--tools,
.im-mega-panel--resources {
  max-width: 1400px;
  margin: 0 auto;
}

@media (min-width: 992px) {
  .im-mega-panel--individuals {
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.15) transparent;
  }

  .im-mega-panel--individuals::-webkit-scrollbar {
    width: 6px;
  }
  .im-mega-panel--individuals::-webkit-scrollbar-track {
    background: transparent;
  }
  .im-mega-panel--individuals::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 3px;
  }
  .im-mega-panel--individuals::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25);
  }
}

/* -----------------------------------------
   Individuals Mega-Menu Grid
   ----------------------------------------- */
.im-mega-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem 2.5rem;
}

/* Businesses panel - single column, tight link spacing */
.im-mega-panel--businesses {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

/* Simple single-column for tools/resources */
.im-mega-panel--tools,
.im-mega-panel--resources {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.im-mega-category-header {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--im-text-200);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--im-bg-300);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.im-mega-category-header i {
  color: var(--im-accent-200);
  font-size: 0.875rem;
}

.im-mega-link {
  display: block;
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--im-text-100);
  text-decoration: none;
  padding: 0.5rem 0;
  line-height: 1.6;
  transition: all 0.2s ease;
  border-radius: 8px;
}

.im-mega-link:hover,
.im-mega-link:focus-visible {
  color: var(--im-accent-200);
  background: rgba(var(--im-accent-200-rgb), 0.08);
  padding-left: 0.5rem;
  transform: translateX(4px);
}

/* View All footer */
.im-mega-footer {
  grid-column: 1 / -1;
  border-top: 1px solid var(--im-bg-200);
  padding-top: 0.75rem;
  margin-top: 0.25rem;
  text-align: center;
}

.im-mega-footer a {
  color: var(--im-accent-200);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: gap 0.2s ease;
}

.im-mega-footer a:hover {
  gap: 0.625rem;
}

/* -----------------------------------------
   Businesses Panel
   ----------------------------------------- */
.im-biz-section-header {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--im-text-200);
  margin-bottom: 0.5rem;
  padding-bottom: 0.375rem;
  border-bottom: none;
}

.im-biz-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--im-text-100);
  text-decoration: none;
  padding: 0.5rem 0;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.im-biz-link i {
  color: var(--im-accent-200);
  font-size: 1rem;
  width: 1.25rem;
  text-align: center;
}

.im-biz-link:hover,
.im-biz-link:focus-visible {
  color: var(--im-accent-200);
  background: rgba(var(--im-accent-200-rgb), 0.08);
  padding-left: 0.5rem;
  transform: translateX(4px);
}

.im-biz-divider {
  height: 0;
  border: 0;
  border-top: 1px solid var(--im-bg-300);
  margin: 0.75rem 0;
}

/* CTA card at bottom of business dropdown */
.im-biz-cta {
  background: var(--im-bg-200);
  border: 1px solid var(--im-bg-300);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-top: 0.75rem;
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.2s ease,
              box-shadow 0.2s ease;
}

.im-biz-cta:hover {
  transform: translateY(-2px);
  border-color: var(--im-accent-200);
  box-shadow: 0 4px 12px rgba(0, 102, 140, 0.1);
}

.im-biz-cta p {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--im-text-100);
  margin-bottom: 0.625rem;
}

.im-biz-cta .btn {
  background: var(--im-accent-200);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  transition: background 0.15s ease;
}

.im-biz-cta .btn:hover {
  background: #005270;
}

/* -----------------------------------------
   Free Tools Panel
   ----------------------------------------- */
.im-tool-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.5rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--im-text-100);
  transition: all 0.2s ease;
}

.im-tool-link:hover,
.im-tool-link:focus-visible {
  color: var(--im-accent-200);
  background: rgba(var(--im-accent-200-rgb), 0.08);
  transform: translateX(4px);
}

.im-tool-link i {
  font-size: 1.125rem;
  color: var(--im-accent-200);
  width: 1.5rem;
  text-align: center;
}

.im-tool-link .im-tool-title {
  font-weight: 500;
  font-size: 0.9375rem;
}

.im-tool-link .badge {
  font-size: 0.6875rem;
  font-weight: 600;
}

/* -----------------------------------------
   Resources Panel (standard dropdown style)
   ----------------------------------------- */
.im-resource-link {
  display: block;
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--im-text-100);
  text-decoration: none;
  padding: 0.5rem 0.5rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.im-resource-link:hover,
.im-resource-link:focus-visible {
  color: var(--im-accent-200);
  background: rgba(var(--im-accent-200-rgb), 0.08);
  transform: translateX(4px);
}

/* -----------------------------------------
   Keyboard Focus
   ----------------------------------------- */
.im-mega-trigger:focus-visible,
.im-mega-link:focus-visible,
.im-biz-link:focus-visible,
.im-tool-link:focus-visible,
.im-resource-link:focus-visible {
  outline: 2px solid var(--im-accent-200);
  outline-offset: 2px;
}

/* -----------------------------------------
   Mobile (<992px) — Accordion Style
   ----------------------------------------- */
@media (max-width: 991.98px) {
  /* Reset panel positioning for mobile */
  .im-mega-panel {
    position: static;
    transform: none;
    width: 100% !important;
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0 0 0 1rem;
    max-height: 0;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.35s ease;
    background: transparent;
  }

  .im-mega-panel.is-open {
    transform: none;
    max-height: 2000px;
    padding: 0.5rem 0 0.5rem 1rem;
  }

  /* Grid becomes single column on mobile */
  .im-mega-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  /* Category headers become tappable */
  .im-mega-category-header {
    padding: 0.5rem 0;
    margin-bottom: 0;
    cursor: pointer;
    user-select: none;
  }

  .im-mega-category-header .im-cat-chevron {
    margin-left: auto;
    transition: transform 0.25s ease;
    font-size: 0.75rem;
  }

  .im-mega-category-header.is-expanded .im-cat-chevron {
    transform: rotate(180deg);
  }

  /* Category services hidden by default on mobile */
  .im-mega-cat-services {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .im-mega-cat-services.is-expanded {
    max-height: 1000px;
  }

  /* Hover bridge not needed on mobile */
  .im-mega-nav-item::after {
    display: none !important;
  }

  /* Full-height overlay */
  .navbar-collapse {
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }
}

/* -----------------------------------------
   Desktop (992px+)
   ----------------------------------------- */
@media (min-width: 992px) {
  /* Services are always visible on desktop; split into columns */
  .im-mega-cat-services {
    max-height: none;
    overflow: visible;
    columns: 2 180px;
    column-gap: 1.5rem;
  }

  .im-mega-cat-services .im-mega-link {
    break-inside: avoid;
  }

  /* Hide mobile chevrons on desktop */
  .im-cat-chevron {
    display: none;
  }
}

/* -----------------------------------------
   Reduced Motion
   ----------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .im-mega-panel,
  .im-mega-trigger .im-chevron,
  .im-mega-link,
  .im-biz-link,
  .im-biz-cta,
  .im-tool-link,
  .im-mega-cat-services,
  .im-mega-category-header .im-cat-chevron {
    transition: none;
  }
}

/* -----------------------------------------
   Dark Mode Adjustments
   ----------------------------------------- */
/* Ensure default navbar has same border-radius in dark mode */
.dark-mode .navbar .container {
  border-bottom-left-radius: 0.5rem;
  border-bottom-right-radius: 0.5rem;
}

.dark-mode .navbar.is-scrolled .container {
  background: rgba(23, 23, 23, 0.85);
  border-radius: 24px;
  border-color: var(--im-accent-bright);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 2px 16px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.dark-mode .navbar.is-scrolled {
  background: transparent !important;
}

.dark-mode .navbar.is-scrolled .im-mega-panel {
  background: rgba(23, 23, 23, 0.98);
}

.dark-mode .im-mega-panel {
  background: rgba(23, 23, 23, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-color: var(--im-accent-bright);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 2px 16px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.dark-mode .im-mega-link,
.dark-mode .im-biz-link,
.dark-mode .im-tool-link .im-tool-title,
.dark-mode .im-resource-link {
  color: rgba(255, 255, 255, 0.85);
}

.dark-mode .im-mega-link:hover,
.dark-mode .im-biz-link:hover,
.dark-mode .im-tool-link:hover,
.dark-mode .im-resource-link:hover {
  color: var(--im-accent-100);
  background: rgba(var(--im-accent-200-rgb), 0.15);
}

.dark-mode .im-mega-category-header,
.dark-mode .im-biz-section-header {
  color: rgba(255, 255, 255, 0.6);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.dark-mode .im-biz-cta {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}


.dark-mode .im-mega-panel--individuals {
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}
.dark-mode .im-mega-panel--individuals::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
}
.dark-mode .im-mega-panel--individuals::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* -----------------------------------------
   Footer Utilities
   ----------------------------------------- */
.im-footer-text {
  max-width: 306px;
}